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authorJens Axboe <axboe@kernel.dk>2023-06-27 21:05:01 +0300
committerJens Axboe <axboe@kernel.dk>2023-06-28 01:07:24 +0300
commitb65db9211ecb7f8383e02dcf71b8c1e9c7043a40 (patch)
tree01893799662e8297a04a676764245e8d1a675818 /io_uring
parent1ef6663a587ba3e57dc5065a477db1c64481eedd (diff)
downloadlinux-b65db9211ecb7f8383e02dcf71b8c1e9c7043a40.tar.xz
io_uring/net: use proper value for msg_inq
struct msghdr->msg_inq is a signed type, yet we attempt to store what is essentially an unsigned bitmask in there. We only really need to know if the field was stored or not, but let's use the proper type to avoid any misunderstandings on what is being attempted here. Link: https://lore.kernel.org/io-uring/CAHk-=wjKb24aSe6fE4zDH-eh8hr-FB9BbukObUVSMGOrsBHCRQ@mail.gmail.com/ Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/net.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/io_uring/net.c b/io_uring/net.c
index a8e303796f16..be2d153e39d2 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -630,7 +630,7 @@ static inline bool io_recv_finish(struct io_kiocb *req, int *ret,
unsigned int cflags;
cflags = io_put_kbuf(req, issue_flags);
- if (msg->msg_inq && msg->msg_inq != -1U)
+ if (msg->msg_inq && msg->msg_inq != -1)
cflags |= IORING_CQE_F_SOCK_NONEMPTY;
if (!(req->flags & REQ_F_APOLL_MULTISHOT)) {
@@ -645,7 +645,7 @@ static inline bool io_recv_finish(struct io_kiocb *req, int *ret,
io_recv_prep_retry(req);
/* Known not-empty or unknown state, retry */
if (cflags & IORING_CQE_F_SOCK_NONEMPTY ||
- msg->msg_inq == -1U)
+ msg->msg_inq == -1)
return false;
if (issue_flags & IO_URING_F_MULTISHOT)
*ret = IOU_ISSUE_SKIP_COMPLETE;
@@ -804,7 +804,7 @@ retry_multishot:
flags |= MSG_DONTWAIT;
kmsg->msg.msg_get_inq = 1;
- kmsg->msg.msg_inq = -1U;
+ kmsg->msg.msg_inq = -1;
if (req->flags & REQ_F_APOLL_MULTISHOT) {
ret = io_recvmsg_multishot(sock, sr, kmsg, flags,
&mshot_finished);
@@ -902,7 +902,7 @@ retry_multishot:
if (unlikely(ret))
goto out_free;
- msg.msg_inq = -1U;
+ msg.msg_inq = -1;
msg.msg_flags = 0;
flags = sr->msg_flags;